Ui daughterboard
About the Ui daughterboard PCB
Ui daughterboard is an open source PCB design by derekfountain, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 100 × 99.9 mm, with 15 components from 7 distinct parts.
By type, the board carries 8 diodes, 3 connectors, 2 switches and 1 test point.
It belongs with the test & measurement designs in this gallery.
From the project
A recreation of the ZX Spectrum Expansion System, a hardware Microdrive emulator
Update August'26: Following recent interest in this project I've been making a few interfaces up so people can buy them. The project page on my personal website has the details on how to get hold of one.
This device plugs into the back of a 48K ZX Spectrum and provides the functionality of the original 1984 "ZX Spectrum Expansion System". It emulates a ZX Interface One with 8 ZX Microdrives.
Ui daughterboard bill of materials (BOM)
15 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Conn_01x06_Male | PinHeader_1x06_P2.54mm_Vertical | J101 |
| 1 | Conn_01x10_Male | PinHeader_1x10_P2.54mm_Vertical | J102 |
| 1 | Conn_01x04_Female | PinHeader_1x04_P2.54mm_Vertical | J103 |
| 1 | TestPoint | TestPoint_THTPad_D2.0mm_Drill1.0mm | 3V3 |
| 2 | SW_SPST | SW_PUSH_6mm_H4.3mm | SW101, SW102 |
| 1 | TestPoint | TestPoint_THTPad_D2.0mm_Drill1.0mm | TP101 |
| 8 | LED_Small | LED_D3.0mm | D101, D102, D103, D104, D105, D106, D107, D108 |
Ui daughterboard design files
The KiCad project lives in the derekfountain/zx-spectrum-pico-interface-one repository on GitHub; these links point at the commit this page was built from.
Ui daughterboard: common questions
How big is the Ui daughterboard PCB?
The Ui daughterboard measures 100 × 99.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ui daughterboard?
15 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Ui daughterboard design files?
From the derekfountain/zx-spectrum-pico-interface-one repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Ui daughterboard design in my own project?
Yes, under the terms of its GPL-2.0 license, which derekfountain chose for the repository.
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